60 color standard_texture(vector *hit, texture *tex, ray *ry) {  in standard_texture()  argument
61     return tex->col;  in standard_texture()
65 color image_cyl_texture(vector *hit, texture *tex, ray *ry) {  in image_cyl_texture()  argument
69     rh.x = hit->x - tex->ctr.x;  in image_cyl_texture()
70     rh.z = hit->y - tex->ctr.y;  in image_cyl_texture()
71     rh.y = hit->z - tex->ctr.z;  in image_cyl_texture()
75     u = u * tex->scale.x;  in image_cyl_texture()
76     u = u + tex->rot.x;  in image_cyl_texture()
81     v = v * tex->scale.y;  in image_cyl_texture()
82     v = v + tex->rot.y;  in image_cyl_texture()
87     return ImageMap((rawimage *)tex->img, u, v);  in image_cyl_texture()
91 color image_sphere_texture(vector *hit, texture *tex, ray *ry) {  in image_sphere_texture()  argument
95     rh.x = hit->x - tex->ctr.x;  in image_sphere_texture()
96     rh.y = hit->y - tex->ctr.y;  in image_sphere_texture()
97     rh.z = hit->z - tex->ctr.z;  in image_sphere_texture()
101     u = u * tex->scale.x;  in image_sphere_texture()
102     u = u + tex->rot.x;  in image_sphere_texture()
107     v = v * tex->scale.y;  in image_sphere_texture()
108     v = v + tex->rot.y;  in image_sphere_texture()
113     return ImageMap((rawimage *)tex->img, u, v);  in image_sphere_texture()
117 color image_plane_texture(vector *hit, texture *tex, ray *ry) {  in image_plane_texture()  argument
121     pnt.x = hit->x - tex->ctr.x;  in image_plane_texture()
122     pnt.y = hit->y - tex->ctr.y;  in image_plane_texture()
123     pnt.z = hit->z - tex->ctr.z;  in image_plane_texture()
125     VDOT(u, tex->uaxs, pnt);  in image_plane_texture()
129     VDOT(v, tex->vaxs, pnt);  in image_plane_texture()
133     u = u * tex->scale.x;  in image_plane_texture()
134     u = u + tex->rot.x;  in image_plane_texture()
139     v = v * tex->scale.y;  in image_plane_texture()
140     v = v + tex->rot.y;  in image_plane_texture()
145     return ImageMap((rawimage *)tex->img, u, v);  in image_plane_texture()
148 color grit_texture(vector *hit, texture *tex, ray *ry) {  in grit_texture()  argument
156     col.r = tex->col.r * fnum;  in grit_texture()
157     col.g = tex->col.g * fnum;  in grit_texture()
158     col.b = tex->col.b * fnum;  in grit_texture()
163 color checker_texture(vector *hit, texture *tex, ray *ry) {  in checker_texture()  argument
168     xh = hit->x - tex->ctr.x;  in checker_texture()
171     yh = hit->y - tex->ctr.y;  in checker_texture()
174     zh = hit->z - tex->ctr.z;  in checker_texture()
192 color cyl_checker_texture(vector *hit, texture *tex, ray *ry) {  in cyl_checker_texture()  argument
198     rh.x = hit->x - tex->ctr.x;  in cyl_checker_texture()
199     rh.y = hit->y - tex->ctr.y;  in cyl_checker_texture()
200     rh.z = hit->z - tex->ctr.z;  in cyl_checker_texture()
223 color wood_texture(vector *hit, texture *tex, ray *ry) {  in wood_texture()  argument
229     x = (hit->x - tex->ctr.x) * 1000;  in wood_texture()
230     y = (hit->y - tex->ctr.y) * 1000;  in wood_texture()
231     z = (hit->z - tex->ctr.z) * 1000;  in wood_texture()
336 color marble_texture(vector *hit, texture *tex, ray *ry) {  in marble_texture()  argument
368 color gnoise_texture(vector *hit, texture *tex, ray *ry) {  in gnoise_texture()  argument
372     f = Noise((hit->x - tex->ctr.x), (hit->y - tex->ctr.y), (hit->z - tex->ctr.z));  in gnoise_texture()
379     col.r = tex->col.r * f;  in gnoise_texture()
380     col.g = tex->col.g * f;  in gnoise_texture()
381     col.b = tex->col.b * f;  in gnoise_texture()